Today we were working in Castle Coombe in Wiltshire, this area flooded and we were instructed to carry out the lime plastering by Clover Maintenance from Bristol. Clover Maintenance specialise in Insurance work and we have worked for them for a number of years now carrying out all of their damp proofing, waterproofing, timber treatments, structural repairs and lime plastering work.

Complete Preservation are a specialist company that carry out detailed surveys on historic buildings with full costings for remedial works including cad drawings. Most of our lime work is the removal of external cement renders and replacement with lime renders.

We also rake out cement pointing and re-point with a lime mortar.

A typical lime plastering specification on to solid internal walls:

Dub (fill out) any deep holes in the wall with a haired lime putty mortar. Rebuild defects using like for like materials i.e. cob blocks or stone.

Counter batten wooden lintels with oak lath if they are to be plastered over and treat lintels with preservative.

Apply one scat coat of 3/1 unhaired lime mortar to provide a key to cob, brick or stone. Scat is a soupy mix of 3/1 unhaired mortar.

Apply sufficient coats of 3/1 haired lime mortar to level the contours of the wall. This should be a max depth 20mm; sag will occur if the mortar is too thick. Make sure each haired coat is scratched in straight or wavy lines horizontally. Do not hatch scratch #. Haired mortar can be applied as many times as needed, but you must wait for each coat to dry before attempting another.

The last float coat should be unhaired to avoid hair coming through the top coat. This is applied at a depth of around 10mm, and needs to be floated up after being trowelled on. If hair line cracks appear, this is because the float coat requires more floating.

Finish coat: apply skim coat of 3/2 fine skim lime plaster, made with very fine sand and lime putty. We carry this out in 2 applications using a wet on wet process. The skim should no more than 3mm thickness overall.

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Lime preservation company Wiltshire working in Castle Coombe Wiltshire

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Lime plastering and refurbishment Castle Coombe, Wiltshire

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Lime pointing specialist Wiltshire, Somerset, Swindon, Bristol

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The above pictures show the lime plaster finished and painted, we also fitted solid oak boards for seating and finishing off around the window

Please click on the link below to go through to our website if you require a survey for lime plastering, rendering, and re-pointing. We work mainly In Wiltshire and Somerset, but do cover the South West.

Main website www.completepreservation.co.uk

Or our lime website www.completelimepreservation.co.uk

01225 769215

Posted by Complete Preservation

2 Comments

  1. I see you also carry out damp diagnosis and repair, lime pointing walls.
    To be completely honest we have been told we need to spend a huge sum on our property to get rid of the damp. We have been told we need to take our concrete floors up and replace with a breathable floor, take all of the plaster off from floor to ceiling, pointing needs to raked out and replaced, open all fireplaces up. This seems extreme considering the damp is is not really that bad. Can you help us with this situation snd a survey?
    We live live in Trowbridge Wiltshire by the way, You previously have carried out work in our neighbours house a number of years ago.

    Reply

  2. Hi Ron

    This is something we can help you with. From what you have said, you will need a survey to actually find what damp you have. I can only presume it’s rising damp if there are recommendations with the floors. I would suggest a survey following the methodology in BRE Digest 245, this paints a picture of the distribution of moisture and if hygroscopic salts are present. This methodology is the only way to tell what is going on, and the quantitative data will also guide me on the repair necessary.
    Probably have worked on your neighbours house, we have worked on a fair few in Trowbridge 🙂

    Please contact me to discuss further on 01225 769215

    Reply

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